Add some run tests related to value classes

Author: smarter

tests/pending/run/t6260-delambdafy.check

@@ -0,0 +1 @@
+f(C@2e)

tests/pending/run/t6260-delambdafy.flags

@@ -0,0 +1,17 @@
+class C[A](private val a: Any) extends AnyVal
+
+object Test {
+  val f = (x: C[Any]) => {println(s"f($x)"); x}
+  def main(args: Array[String]): Unit = {
+    f(new C("."))
+
+    val methods = f.getClass.getDeclaredMethods.map(_.getName).sorted
+    // Lambdas in Dotty are created with LambdaMetaFactory (when possible)
+    // which does not guarantee that the list of methods will always be the same.
+    /*
+    println("")
+    println(methods.mkString("\n"))
+    */
+  }
+}
+

tests/pending/run/t6260-delambdafy.scala

@@ -1,6 +1,7 @@
 final class Opt[+A >: Null](val value: A) extends AnyVal {
   def get: A  = value
   def isEmpty = value == null
+  def isDefined = !isEmpty
 }
 object Opt {
   final val None = new Opt[Null](null)

tests/pending/run/genericValueClass.check renamed to tests/run/genericValueClass.check

@@ -6,12 +6,13 @@ object NonNullChar {
   @inline final val None = new NonNullChar(0.toChar)
 }
 
-final class SomeProduct extends Product3[String, Int, List[String]] {
+final class SomeProduct /*extends Product3[String, Int, List[String]]*/ {
   def canEqual(x: Any) = x.isInstanceOf[SomeProduct]
   def _1 = "abc"
   def _2 = 5
   def _3 = List("bippy")
   def isEmpty = false
+  def isDefined = !isEmpty
   def get = this
 }
 object SomeProduct {